Dental implants and dental implant/prosthetic tooth systems

A one-piece dental implant having a longitudinal axis, comprising:

• a head portion at a first end of the implant;
• a tip portion at a second end of the implant;
• and
• a body portion between the head portion and the tip portion, the body portion having a first portion proximate the head portion with at least one longitudinal groove substantially parallel to the longitudinal axis and a second portion proximate the tip portion having a substantially circumferential groove, wherein the outer diameter of the first portion is greater the outer diameter of the second portion, the first and second portion for being embedded in a jaw bone, and
• wherein at least a portion of the contour of a top surface of the head portion substantially matches the shape of the cemento-enamel junction of a tooth being replaced.

A dental implant for supporting an artificial tooth, the implant having a longitudinal axis, the implant comprising:

• a head portion at a first end of the implant, the head portion having a top surface with a circumference substantially matching the circumference of a tooth to be replaced, proximate the cemento-enamel junction of the tooth being replaced, and wherein at least a portion of the contour of the top surface substantially matches the shape of the cemento-enamel junction of the tooth being replaced;
• a tip portion at a second end of the implant;
• and
• a body portion between the head portion and the tip portion.

A dental implant having a longitudinal axis, comprising:

• a head portion at a first end of the implant;
• a tip portion at a second end of the implant;
• and
• a body portion between the head portion and the tip portion;
• wherein the dental implant has a buccal side for being aligned with a buccal side of the jaw bone and a lingual side for being aligned with a lingual side of the jaw bone, and interproximal sides between the buccal and lingual sides, the height of the implant being less at the buccal side of the implant and rising toward the interproximal sides of the implant, such that at least a portion of the contour of a top surface of the head portion substantially matches the shape of the cemento-enamel junction of a tooth being replaced.

A one-piece, press-fit dental implant having a longitudinal axis, the dental implant comprising:

• a head portion defining a circumferential surface and a top surface;
• a tip portion defining a circumferential surface and a bottom surface;
• and
• a body portion between the head portion and the tip portion;
• the body portion defining a circumferential surface, wherein the circumferential surface of the head portion has a smooth surface with length along the longitudinal axis such that at least a portion of the contour of the top surface and the smooth surface substantially follow the shape of the cemento-enamel junction of a tooth that is to be replaced.

A one-piece dental implant having a longitudinal axis, the dental implant comprising:

• a head portion defining a circumferential surface and a top surface and including a means for direct attachment of a prosthetic tooth, at least a portion of the contour of the top surface substantially matching the shape of the cemento-enamel junction of a tooth that is to be replaced;
• a tip portion defining a circumferential surface and a bottom surface;
• and
• a body portion between the head portion and the tip portion;
• the body portion defining a circumferential surface;
• wherein the circumferential surface of the head portion has a smooth surface with a length along the longitudinal axis that is approximately the biological width, a contour of the smooth surface perpendicular to the longitudinal axis substantially following the shape of the cemento-enamel junction of the tooth that is to be replaced, the circumferential surface of the head portion having a shape with
• a first portion proximate an edge between the circumferential surface and the top surface of the head portion that substantially matches the shape of the circumferential surface of the tooth that is to be replaced;
• and
• a second portion that substantially matches the shape of the cervical ⅓ of the root of the tooth that is to be replaced.

A one-piece, press-fit dental implant having a longitudinal axis, the dental implant comprising:

• a head portion defining a circumferential surface and a top surface;
• a tip portion defining, a circumferential surface and a bottom surface;
• and
• a body portion between the head portion and the tip portion;
• the body portion defining a circumferential surface, wherein the circumferential surface of the head portion has a smooth surface with length along the longitudinal axis such that the smooth surface substantially follows the shape of the cemento-enamel junction of a tooth that is to be replaced, the body portion including a plurality of longitudinal grooves that extend into the head portion.